Sony CXD5602 User Manual page 262

X
unsigned_to_signed
Offset
Gain
As for offset addition and gain multiplication, when the data is multiple-axis (2 axis/3 axis), settings can be
made independently for each X, Y, and Z axis.
3.9.7.2 Decimation Processing
In the MATH_PROC processing, up to two lines of decimation filters (two-stage CIC filter) can be used, which
can be applied to the sensor data captured by the SEQ0 sequencer and SEQ1 sequencer.
The decimation path has four output paths per each input, and 1/(2^n) decimation can be selected for three of
them depending on the settings. A two-stage CIC filter process is applied for the decimation processing.
For the three target paths of decimation, the results of decimation, the input signal in its original form, or the
setting for 0-fixed output can be selected.
Also, after the decimation processing, multiplying by 2n times with clipping is performed. In this process, a
common multiplying by 2n times coefficient is used for the X, Y, and Z axes.
Figure SCU (Sensor Control Unit)-61 shows the data flow of the decimation and multiplication processing with
clipping.
bin
two
Figure SCU (Sensor Control Unit)-60 Preprocessing Data Flow
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CXD5602 User Manual
round
Y
and
clip